package com.cn.parks.servlet;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import java.io.IOException;

@WebServlet("/checkLogin")
public class CheckLoginServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        HttpSession session = request.getSession(false);

        if (session != null && session.getAttribute("user") != null) {
            response.getWriter().write("{\"success\":true}");
        } else {
            response.getWriter().write("{\"success\":false}");
        }
    }
}